Schömberg near Balingen, sample 2: Middle Toarcian - Late Toarcian, Germany
collected 1990
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Crinoidea
- Cyrtocrinida
- Tetracrinidae
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Praetetracrinus inornatus
(Simms 1989)
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| see common names | |||||||
Geography
| Country: | Germany |
| Coordinates: | 48.2° North, 8.8° East (view map) |
| Paleocoordinates: | 37.8° North, 28.9° East (Wright 2013) |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Early Jurassic |
| Stage: | Toarcian | 10 m.y. bin: | Jurassic 3 |
| Key time interval: | Middle Toarcian - Late Toarcian | ||
| Age range of interval: | 182.9 - 174.7 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: From jurense-Bank, an 8 cm thick marl interval. Crinoids come from matrix washings from ammonoid blocks, so it's not possible to determine whether they came from the lower or upper part of the bank. Probably came from lower part because hanging wall is poor in crinoids. Collection 31987 is combination of samples 1-4, but they are not separated in that reference. | |||||
Lithology and environment
| Primary lithology: | lithified marl |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | SMNS | Collection dates: | 1990 |
Metadata
| Database number: | 139789 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2013-02-18 05:17:55 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2013-02-18 05:17:55 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 44974. | M. Jäger. 1995. Echinodermata aus dem Ober-Toarcium und Aalenium Deutschlands I. Crinoidea: Cyrtocrinina und Millericrinina. Stuttgarter Beiträge zur Naturkunde Serie B (Geologie und Paläontologie) 226:1-51 [M. Clapham/M. Clapham] |